<!DOCTYPE html>
<html>
	<head>
		<!--
        	作者：刘开新
        	时间：2018-09-19
        	描述：作业5
        -->
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			ul{list-style: none; }
			ul li{float: left;margin: 30px;}
            .yangshi:hover{
            	color: red;
            	text-decoration: overline ;
            }
		</style>
	</head>
	<body>
		<ul>
			<li class="yangshi">aa</li>
			<li class="yangshi">bb</li>
			<li class="yangshi">cc</li>
			<li class="yangshi">dd</li>
		</ul>	
	</body>
</html>
